Schema.md

Schema 管理

https://www.doctrine-project.org/projects/doctrine-dbal/en/2.8/reference/schema-manager.html

• SchemaTool 根据Entity的metadata创建表

    public function createTable($number)
    {
        $metadata = $this->em->getClassMetadata(Log::class);
  
        $schemaTool = new \Doctrine\ORM\Tools\SchemaTool($this->locationEm);
        $metadata->setPrimaryTable(['name' => 'log_' . $number]);
        return $schemaTool->createSchema(array($metadata));
    }
  

• SchameManager 判断表是否存在

    public function logExist($number)
    {
        return $this->em->getConnection()->getSchemaManager()->tablesExist('log_' . $number);
    }